CHANGELOG

traceshark (1.0-rc) UNRELEASED; urgency=medium

   * Update qcustomplot to 2.1.1 from upstream.
   * Add a button for exporting statistics to the statistics widgets.
   * Make StatsLimitedModel a subclass of StatsModel in order to remove copy
     pasted code. The statistics code is moved to StatsModel.
   * Do not add leading spaces to statistics percentages less than 100.
   * Report error from failed export of a trace.
   * Make the behavior of file formats and suffixes more uniform. The user will
     be able to override the file format in the file dialog. The default format
     will be the one requested by the user in the widget but it is still
     possible to change it in the file dialog by selecting the proper suffix
     in the combo box of the file diaglog. If the user types in a valid suffix
     in the file name textbox that will be honored.
   * Make some string constant members of MainWindow instead of creating and
     destroying them on the stack.
   * Make perf sched_wakeup argument parsing work with newer perf.
   * New feature: Allow the user to change the color of a task.
   * New feature: save manually selected colors.
   * New Feature: Make it possible to reset task colors.
   * Make it possible to export from the regular task dialog.
   * Change menu text and tooltip for the settings dialog.
   * New feature: Add a color button to the task selector dialogs, this allows
     the user to select color from the task selector and statistics dialog.
   * Require pid to be positive for graph operations. Tasks with a pid of 0, or
     negative can no longer be added to the legend having a unified graph or
     changing the color. This tasks are not real.
   * Add icons to push buttons to the task select and statistics dialogs.
   * Change the name of "task graphs" to "unified graphs" in the UI.
   * Use std::move() in order to fix  CID 1566290, 1566288, 156287, and 1575567
     in Coverity.
   * Use icons in the push buttons in the regex dialogs.
   * Use icons in the push buttons in the latency widget.
   * Use icons in the push buttons in the CPU select dialog.
   * Use icons in the push buttons in the event select dialog.
   * Use icons in the settings dialog.
   * Fix bug where png icon was used instead of svg icon.
   * Add support for building with Qt6.
   * perf-record.sh: Do not try to automatically use more than 1G of buffers.
   * Improve support for modern kernels with respect to the parsing of the state.
     of the previous task in sched_switch events.
   * Replace the icon for settings and selecting graphs.
   * Parse and display the Ftrace flags field. This field has always been
     in /sys/kernel/debug/tracing/trace{,_pipe} but now it's also present
     the output from trace-cmd.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 11 Feb 2024 23:09:43 +0200

traceshark (0.9.14-beta) RELEASED; urgency=medium

   * Added commented out options for newer compiler the file traceshark.pro
   * perf-record.sh: add option to specify alternative perf command
   * New feature: identify ghost tasks. Ghost tasks are tasks that appears as
     as event tasks of sched_switch events but are neither oldpid, nor newpid.
     They are of interest because the same tasks also appears as the event task
     of sched_wakeup and sched_waking events. In the widgets showing lists of
     tasks, ghost tasks will be displayed with red foreground and cyan
     background.
   * What appears to be a bug was fixed in processSwitchEvent()
   * Some members of AbstractTask was made static.
   * Some code that was duplicated across StatsModel, StatsLimitedModel, and
     TaskModel was moved into their common parent class AbstractTaskModel.
   * Some corner cases of tasks with negative pids where corrected in
     MainWindow.
   * The TList class was modified to be more compatible with QList and QVector,
     so that swap() and swapItemAt() now performs the same operations.
   * CID 1530657 and CID 1530656, two newly detected Coverity issues, were
     fixed. Both have been lurking in the code for a long time but apparently
     they were only discovered now because of some new feature in Coverity.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 15 Jan 2023 23:37:55 +0100

traceshark (0.9.13-beta) RELEASED; urgency=medium

   * Update QCustomPlot to 2.1.0.
   * Unbreak the build for macOS.
   * Use the time of the sched_switch event for wakeup latency.
   * Add a feature to be able to display scheduling latencies with a button.
   * Add a feature to be able to display wakeup latencies with a button.
   * Improve the description of the latency settings in the settings widget.
   * Add documentation to the README.md for the two new buttons for displaying
     wakeup and scheduling latencies.
   * Fix CID 1510793 in Coverity.
   * Shorten exportTraceFile() by moving code into a new function.
   * Fix some bugs in vtl/time.h that currently have no impact.
   * Implement the possibility for exporting latencies.
   * Handle the case when consecutive sched_switch events on the same CPU have
     exactly the same timestamp. The handling is artistic rather than
     scientific; we add some time between the events.
   * Add handling for ftrace wakeup event missing the success parameter,
     including older version that inserts a warning about it missing.
   * Improve the handling of missing wakeup events. No schedluing or wakeup
     latency will be calculated if there is no reasonble wakup or
     schec_switch event preceding the task being scheduled.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 11 Jul 2022 20:38:45 +0300

traceshark (0.9.12-beta) RELEASED; urgency=medium

  * Fixed a bug that results in bad drawing performance when traceshark is built
    with OpenGL support but linked against a QCustomPlot library that was not
    built with OpenGL support. This bug currently seem to affect traceshark
    in both Debian and Ubuntu.
  * Improved shortcuts.
  * Got rid of bzero() usage that caused compiler warning.
  * Removed dead code.
  * Added the new regex filtering feature that allows to filter events based on
    regular expression filtering of the event arguments.
  * Coding style improvements.
  * Polished the "About Traceshark" message.
  * Removed duplicated code.
  * Added a new feature to let the user save the preferred window size.
  * Change of behavior: filtering is updated when filtering options are changed.
  * Added commented out compiler flags to traceshark.pro for newer
    architectures.
  * Updated the screenshot in the documentation.
  * Make all dialogs parents of the MainWindow. This should keep them better
    centered on the main window and also make it impossible to close the main
    window and still leave the application running with only  a dialog from
    which a new main window cannot be launched.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 09 May 2021 20:47:32 +0200

traceshark (0.9.11-beta) RELEASED; urgency=medium

  * Add the new Event menu. It has actions for displaying the backtrace,
    filtering, and moving the cursor. These actions can also be triggered by
    double clicking on the corresponding column of the currently selected event.
  * The actions in the above mentioned menu to filter based on the selected
    event are new.
  * The selction policy of the events view has changed. Now a whole row is
    always selected.
  * The menus have been improved with keyboard shortcuts and the incorrect
    repetition of "Remove task graph" has been corrected.
  * README.md has been updated with a new screenshot and some updates to better
    describe the current version.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 27 Sep 2020 18:54:07 +0200

traceshark (0.9.10-beta) RELEASED; urgency=medium

  * Add an option to traceshark.pro to use the system qcustomplot library. It is
    not recommended to use this feature unless you must.
  * A small cleanup of the modifications to the QCustomPlot library.
  * Add a diagnostic message when closing the trace takes longer than 1 second.
  * Fix statement in the QCustomPlot attribution dialog when we use the system
    QCustomPlot.
  * Add a desktop file: traceshark.desktop.
  * Add a manpage: doc/traceshark.1
  * Change the default zoom to not necessarily show the whole vertical space
     in case the trace has many CPUs. The old default zoom button has been
     renamed and still has its old functionality, i.e. the old default zoom
     behavior. The new default zoom button triggers the new default zoom.
  * Add a vertical scrollbar that is visible when the whole trace doesn't fit
    vertically.
  * Add support for building and running traceshark on macOS. traceshark is
    usable on macOS but it's fairly untested and there are some known bugs:
    - The "About QCustomplot" menu item is missing.
    - The vertical scrollbar for scrolling the plot in the vertical direction
      doesn't work. This means that it's necessary to select the y-axis and
      use the mouse to grab and scroll.
   * Add a button to enable vertical zoom.
   * Use SVG graphics for icons.
   * Add some basic support for HiDPI displays.
   * Increase the size and line width of accessory graphs (preempted,
     uninterruptible, and still running) when the line width of scheduling
     graphs is increased.
   * Make it possible to increase the line width of idle and frequency graphs.
   * Make it possible to increase the line width of the migration arrows.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 02 Aug 2020 16:42:41 +0200

traceshark (0.9.9-beta) RELEASED; urgency=medium

  * New feature: support a newer format of sched_switch and sched_wakeup from
    trace-cmd.
  * New feature: make perf-record.sh more compatible.
  * traceshark.pro got commented out optimizations for RPI 4.
  * New feature: CPU filtering of the events view.
  * Bug fix: A crash that happened after exporting a file and then clicking on
    the info field.
  * Bug fix: the minimum calculation in scripts/stats.sh.
  * Bug fix: many Coverity errors were fixed.
  * Bug fix: The maximum value for the wakeup latency is now 1000 instead of
    232.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Fri, 06 Dec 2019 00:47:10 +0100

traceshark (0.9.8-beta) RELEASED; urgency=medium

  * New feature: tasks, zoom, cursors, task selections, unified graphs and
    legends are restored after changing settings in the graph enable dialog.
  * New feature: if the button to show a dialog is pressed a second time, i.e.
    if the dialog is already visible, then the dialog will be hidden.
  * The button to add a legend is only enabled if the operation is possible.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Tue, 12 Mar 2019 21:19:07 +0100

traceshark (0.9.7-beta) RELEASED; urgency=medium

  * In the task select dialog and in the statistics dialogs a task can be
    selected by double clicking and in this case the state was not correctly
    updated. This has now been fixed.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 27 Feb 2019 09:00:21 +0100

traceshark (0.9.6-beta) RELEASED; urgency=medium

  * Disable the remove task graph button if the operation is not available.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Tue, 26 Feb 2019 23:33:29 +0100

traceshark (0.9.5-beta) RELEASED; urgency=medium

  * OpenGL is enabled by default.
  * New feature: it is possible to select the width of the scheduling graphs in
    the graph enable dialog.
  * New feature: it's possible to save the settings in the graph enable dialog.
    They are saved to $HOME/.traceshark and loaded automatically the next time
    time traceshark is started.
  * New feature: excessive migrations (> 200k) are not displayed by default but
    the user can chose to see them in the graph enable dialog.
  * New feature: two new zoom buttons have been added. One for cursor zoom and
    the other for default zoom.
  * New feature: a new buttons for removing all unified scheduling graphs has
    been added.
  * The performance of QCustomPlot with respect to opening and closing traces
    has been improved. This has been accomplished with QCPList, the new custom
    container class that has been added to the qcustomplot directory.
  * The buttons for removing unified graphs are only enabled if a unified graph
    is in the plot.
  * The button for clearing the legend is only enabled if there is at least one
    task in the legend.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 20 Feb 2019 22:39:00 +0100

traceshark (0.9.4-beta) RELEASED; urgency=medium

  * MainWindow: Improved menu text.
  * MainWindow: Increase size of uninterruptible sleep to 12.
  * Improve file dialogs for uniformity and so that less errors are generated.
  * Improve the opengl option in traceshark.pro.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 28 Jan 2020 22:15:23 +0100

traceshark (0.9.3-beta) RELEASED; urgency=medium

  * Bug fix: an uninitialized variable issue was found with valgrind.
  * Fixed three Coverity issues: CID 1476427, CID 1476428, and CID 1476429.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sat, 05 Jan 2019 23:36:26 +0200

traceshark (0.9.2-beta) RELEASED; urgency=medium

  * Files greater than 2GB can now be opened on 32-bit platforms. Tested with
    Raspbian on Raspberry Pi 3, i.e. ARM 32-bit.
  * Add an option for specifying the stack size to perf-record.sh.
  * Add SPDX-identifiers to source files.
  * The task selection logic has been improved. If a task is selected now, then
    traceshark will first try to find a task graph to select, and if that fails
    it will select the CPU graph with the largest number of scheduling events.
  * A couple of bugs in the display of preempted graphs were fixed. Previously
    it could happen that no preempted graphs were displayed, unless there also
    were a still running graph for the same task.
  * Uninterruptible sleep is now shown with magenta colored plus signs.
  * The markers for still running and preempted were changed to  triangles,
    previously they were small circles.
  * sched_waking from another task is included in the events that are concerned
    with inclusive PID filtering.
  * README.md was updated to describe how still running, preempted and
    uninterruptible sleep is displayed.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 03 Jan 2019 13:21:00 +0200

traceshark (0.9.1-beta) RELEASED; urgency=medium

  * perf-record.sh: Implement options for running perf with SCHED_FIFO.
  * Do not rely on mmap() working to map the whole trace file. This makes it
    possible to open much larger files on 32-bit platforms.
  * Make it possible to export unfiltered events.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 30 Dec 2018 13:46:25 +0200

traceshark (0.9.0-beta) RELEASED; urgency=medium

  * traceshark is now beta, no longer alpha because all the features that I had
    in mind when I started the project have been implemented.
  * New feature: New button to export CPU cycles only.
  * New feature: Git revision is added to the version displayed by
    "Help->About Traceshark".
  * Some small code readability improvements.
  * Bug fix: a serious bug in the find next sleep functionality was fixed.
  * Bug fix: a couple of perf-record.sh bugs were fixed.
  * A new screenshot presented by README.md.
  * Improved handling of trace type determination.
  * Improved handling when opening empty traces.
  * Bug fix: fixed crash when opening files in wrong format, i.e. opening a
    binary file.
  * Fixed crash when using the task select dialog to select the :-1 task.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Tue, 25 Dec 2018 22:51:30 +0200

traceshark (0.8.0-alpha) RELEASED; urgency=medium

  * New feature: If the user double clicks on a task in the task selection
    dialog, or one of the statistics dialog, then the task will be selected,
    both in the plot and in the task toolbar.
  * If a task graph is removed, and if this graph is selected, then we ought to
    also remove it from the task toolbar.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 09 Dec 2018 23:16:55 +0100

traceshark (0.7.1-alpha) RELEASED; urgency=medium

  * Fix a bug and a corner case with the button to find the next sched_switch
    sleep.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 06 Dec 2018 22:16:28 +0100

traceshark (0.7.0-alpha) RELEASED; urgency=medium

  * New feature: a button to filter on the currently selected task.
  * New feature: a button to filter on the currently selected task and the time
    defined by the cursors.
  * New feature: a button to find the next sched_switch event that puts the
    currently selected task to sleep.
  * The buttons that act on the currently selected task are only enabled if a
    task is selected.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 05 Dec 2018 22:11:16 +0100

traceshark (0.6.0-alpha) RELEASED; urgency=medium

  * New feature: A button to find sched_waking events directly, based on the
    currently selected task and active cursor position. With this button it's
    not necessary to first find the wakeup event.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 25 Nov 2018 22:11:45 +0100

traceshark (0.5.1-alpha) RELEASED; urgency=medium

  * The default size of the back trace windows is now larger.
  * The wakeup and waking icons are improved.
  * NullStr is introduced, to reduce crashes if events have unexpected formats.
  * Coverity fixes. I do not believe that any of these would ever be seen by a
    user but who knows.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 28 Oct 2018 20:08:48 +0100

traceshark (0.5.0-alpha) RELEASED; urgency=medium

  * New feature: A button to find sched_waking events that precedes a specific
    sched_wakeup event.
  * Bug fix: The cursor buttons and time fields where not enabled when a trace
    was opened.
  * Bug fix: The events widget did not stay in the same place after a filter was
    disabled.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 04 Oct 2018 23:23:52 +0200

traceshark (0.4.3-alpha) RELEASED; urgency=medium

  * The wakeup button is only enabled if a task is selected.
  * The placement of the task related toolbar is adaptive. Depending on screen
    width it will be placed to the right of the cursor info fields, or above it
    in case of a narrow screen.
  * When the find wakeup button is used, no task will be selected if the wakeup
    event has a pid of 0, that is the idle task.
  * There is a new script in the scripts directory:perf-record.sh. This can be
    used to capture perf traces. It might need local modification.
  * Bug fix: the parsing of ftrace traces is working again.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 03 Oct 2018 18:42:14 +0200

traceshark (0.4.2-alpha) RELEASED; urgency=medium

  * Fix an annoying bug where the final switch event was lost when using perf
    with the 4.14.x kernel,possibly other version as well.
  * Fix the buggy handling of the case with missing switch events, this made
    the above bug much worse.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 20 Sep 2018 02:17:23 +0200

traceshark (0.4.1-alpha) RELEASED; urgency=medium

  * Fix an annoying bug with the percentages in the statistics.
  * Improve the compatibility with perf that is shipped with distros (Debian,
    Fedora).
  * Move away from using unsigned integer types.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 05 Sep 2018 21:41:04 +0200

traceshark (0.4.0-alpha) RELEASED; urgency=medium

  * Add two new dialogs for statistics.
  * Add the graph selector, it's possible to select which graphs to select.
  * The task selector dialog is now a docking widget, as well as the new
    statistics dialogs.
  * Make it easier to modify traceshark.pro in order to configure the build.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 13 Aug 2018 00:58:42 +0200

traceshark (0.3.3-alpha) RELEASED; urgency=medium

  * Fix the spurious error message when canceling an export.
  * Improves the README.md description of the wakeup button.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 07 Mar 2018 21:34:13 +0100

traceshark (0.3.2-alpha) RELEASED; urgency=medium

  * Now it's possible to export filtered events, so that one can for example
    generate a flame graph of what has been filtered. If one wants to generate
    a flamegraph, then it's best to filter on cpu_cycles events and any
    additional conditions that are wanted, such as pid and time.
  * There is an error dialog that reports an error if a file cannot be opened
    or if the exporting of events fails.
  * The about dialog contains information about the compiler version and the
    build time.
  * The traceshark.pro has been equipped with a lot of commented out flags to
    build for a certain CPU, build with clang, or to do a debug build. The debug
    build is no longer the default.
  * Traceshark uses fixed point to calculate time. This means that the rounding
    problems related to floating point calculations should be a thing of the
    past.
  * Traceshark was modified to cope with the output from the 4.14 kernel.
  * Compiler warnings where fixed for gcc-7.3.
  * Qt 5 is now the default and recommended version.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Tue, 06 Mar 2018 22:39:47 +0100

traceshark (0.3.1-alpha) RELEASED; urgency=medium

  * StringTree: Take the AVLTree<> template into use.
  * Improve the time filter icon.
  * AVLTree: Use enum instead of bool.
  * Improve the reset filter and close icons.
  * AVLTree: Important uninitialized pointer bug fix.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 17 Dec 2017 13:06:56 +0100

traceshark (0.3.0-alpha) RELEASED; urgency=medium

  * Add .travis.yml to enable the Travis CI.
  * MainWindow: Don't use anti-aliased error bars.
  * Fix the TaskGraph life cycle.
  * Tone down Qt 5 warning.
  * Introduce QCPPointer to improve performance of QCustomPlot on Qt 4.
  * MemPool: Remove duplicated code.
  * MemPool: Improve coding style a bit.
  * QCustomPlot: Update to 2.0.0
  * Change the license of some files. Traceshark source files will be licensed
    under GPL version 2 or later. In addition it will be possible to license
    the traceshark source files under the two clause BSD license. In other
    words the traceshark files will be dual licensed.
  * The included QCustomPlot will remain under GPL version 3 or later.
  * Currently, traceshark is dependent on QCustomPlot so that in order to
    compile a working binary of traceshark, you will need to license everything
    under GPL version 3, because version 2 and version 3 are not compatible.
  * The program will only display the GPL version 3 license.
  * The purpose of this change is to give more licensing flexibility in the
    future, when/if QCustomPlot gets replaced with another plotting solution.
  * Adjust .gitignore to ignore .qmake.stash.
  * mempool: Remove a bit of duplicated code.
  * MainWindow: New feature - make it easier to iterate through wakeups.
  * TraceFile: Add some static branch prediction.
  * LoadThread: Plug file descriptor leaks.
  * StringTree: Add branch prediction to while loop.
  * StringPool: Improve the cutoff policy.
  * parser: Use StringPool instead of MemPool in *_strdup().
  * Implement filtering of event view by pid.
  * EventsWidget: Make sure that we don't use uninitialized scroll time.
  * TaskModel: Use heap sort to sort the tasks.
  * Change the generation of task names.
  * TaskSelectDialog: List idle task.
  * main(): Implement command line loading.
  * Tracesnalyzer: Replace QMap with AVLTree
  * Fix signed comparison compiler warning in heapsort implementation.
  * Introduce the VTL. All replacements of STL and QT library code should go to
    this directory. I introduce the vtl namespace for these subroutines.
  * TaskModel: Improve comparison functions for tasks.
  * AVLTree: Make the implementation a bit more generic an flexible.
  * Add scripts directory.
  * TraceAnalyzer: improve color picking algorithm.
  * EventSelectDialog, TaskSelectDialog: Replace || and &&.
  * MainWindow: Introduce a menu item and button to reset filters.
  * TraceAnalyzer: Remove debug output.
  * Add a filter for time.
  * Improve the StrHash32() function.
  * AVLTree: Introduce findInsert and other improvements.
  * StringPool: Use the AVLTree template class.
  * Plug memory leaks.
  * StringPool: allocString() should return const.
  * Change average.sh to also compute min/max.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 10 Dec 2017 22:03:40 +0100

traceshark (0.2.3-alpha) RELEASED; urgency=medium

  * A lot of coverity defects have been fixed.
  * When a serious error occur, such as failure to allocate memory, the program
    is killed with abort() rather than assert().

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sat, 17 Sep 2016 14:34:48 +0300

traceshark (0.2.2-alpha) RELEASED; urgency=medium

  * Slight performance improvement by increasing fallthrough in the main switch
    statement of both the ftrace and perf grammars.
  * Improvement of the heuristics that calculate the size of the main window
    when the application is started.
  * Add a status bar at the bottom of the main window.
  * Implement a better parsing of task state flags.
  * Change the "still running" circle so that it's blue if the task was not
    preempted and red if it was preempted.
  * Add the const keyword to a lot of places, in order to make the code more
    clear and make some additional optimization possible.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sat, 10 Sep 2016 20:05:29 +0300

traceshark (0.2.1-alpha) RELEASED; urgency=medium

  * Now the MainWindow start size is calculated from the available geometry
    with the help of a heuristic. I feel that this is much better than using
    hard coded numbers.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 18 Aug 2016 02:55:40 +0300

traceshark (0.2.0-alpha) RELEASED; urgency=medium

  * A new dialog for choosing a task from a list that includes all tasks.
  * The TraceEvent class has lost the eventName field. Thus, the event type is
    only recorded by an integer that will be increased for every new event type
    (name) that is encountered in the trace.
  * strcmp() is used in the StringPool instead of home brewed function.
  * The perf grammar is extended to parse events that has an extra integer
    number in front of the event name, and only one semicolon in the event
    name. This includes a number of HW related events. This change makes them
    show up in the events widget.
  * HOWTO for images is added.
  * Two new tool bars are added in the left toolbar area. These are for opening
    and closing a trace and for showing the task dialog.
  * The push buttons in the InfoWidget are made into toolbar buttons. This was
    partially done in order to make them appear similar to the buttons of the
    toolbars that were added.
  * There has been and effort to disable UI elements that are not able to do
    anything useful when no trace is open. This is true of all the toolbar
    buttons that somehow relates to an open trace and the input fields for
    cursor time values, in fact it related to almost every actionable item,
    except the button to open a new trace and the menu items in the Help menu.
  * Icons are added to the actions in the menu system.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 17 Aug 2016 23:52:32 +0300

traceshark (0.1.2-alpha) RELEASED; urgency=medium

  * Slight performance improvement when parsing Ftrace traces. This improvement
    is more noticeable on ARM than X86.
  * The bug with seemingly identical task names being displayed twice in the
    legend has been fixed. This only happened with Ftrace traces.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 25 Jul 2016 00:54:02 +0300

traceshark (0.1.1-alpha) RELEASED; urgency=medium

  * LoadBuffer: Fix build problem on some distros.
  * Because of the above, traceshark now builds on Fedora.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sat, 02 Jul 2016 23:12:43 +0300

traceshark (0.1.0-alpha) RELEASED; urgency=medium

  * TraceFile: Avoid unnecessary copying of all data between buffers.
  * TraceParser: Fix the last event before sending EOF.
  * Rewrite the Ftrace and Perf grammars to improve performance.
  * TraceFile:ReadNextWord(): Minor optimization.
  * TraceParser: Remove dead code.
  * TraceParser: Fix bug with garbled task names.
  * New feature: Add cpuidle graphs.
  * MainWindow: Change cpufreq and cpuidle graphs to use adaptive sampling.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 11 May 2016 22:59:52 +0300

traceshark (0.0.9-alpha) RELEASED; urgency=medium

  * TraceAnalyzer: Fix crash in processSchedAddTail().
  * TraceAnalyzer: Fix crash in TraceAnalyzer::handleWrongTaskOnCPU().
  * TraceAnalyzer: Fix unecesarily nested if clause.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Wed, 06 Apr 2016 00:54:19 +0300

traceshark (0.0.8-alpha) RELEASED; urgency=medium

  * New feature: Add an attribution dialog for QCustomPlot.
  * MainWindow: Bug fix for showWakeup().
  * Bug fix: Prevent Task::checkName from being called with nullptr.
  * Improve zoom range adjustment when adding/removing a task graph.
  * Improve compilation speed.
  * TraceAnalyzer: Add heuristic for detecting when wakeup events are missing.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Sun, 03 Apr 2016 19:23:26 +0200

traceshark (0.0.7-alpha) RELEASED; urgency=medium

  * Replace NULL with nullptr.
  * InfoWidget, EventsWidget: Add title to these docking widgets.
  * EventsWidget: Fix bug about application not working if events view is
    hidden.
  * New feature: Add the possibility to save screenshots.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 31 Mar 2016 00:04:42 +0200

traceshark (0.0.6-alpha) RELEASED; urgency=medium

  * TraceAnalyzer: Increase safety of processSchedAddTail().
  * New feature: Add unified taskgraphs.
  * TraceAnalyzer: Fix unified task lifetime.
  * CPUTask, Task: Move copy pasted code to shared superclass.
  * TaskRangeAllocator: add a section offset for the unified tasks.
  * MainWindow: Fix offset bug.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Tue, 29 Mar 2016 18:12:52 +0200

traceshark (0.0.5-alpha) RELEASED; urgency=medium

  * TaskInfo: Replace the text on "Find wakeup" button with icon.
  * TaskInfo: Iconize the "Add to legend" button.
  * TaskInfo: Iconize the "Clear" button.
  * Improve the wakeup icon.
  * CursorInfo: Iconsize the buttons for moving cursors.
  * Modify the axis label of cpu scheduling graphs from cpuX to schecX.
  * MainWindow: Modify the order of the graphs.
  * Improve legend icons.
  * Improve the wakeup icon.
  * MainWindow: Fix third regression from moving setupCursors().

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Fri, 25 Mar 2016 16:38:17 +0200

traceshark (0.0.4-alpha) RELEASED; urgency=medium

  * Improve the name detection of threads that changes name.
  * EventsModel: minor cleanup.
  * Add the displaying of task name history in the legend.
  * MainWindow: run setupCursors() before showTrace().

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 21 Mar 2016 00:11:15 +0200

traceshark (0.0.3-alpha) RELEASED; urgency=medium

  * TraceParser: Huge refactoring of perf and ftrace code.
  * MainWindow: remove unused variable.
  * TraceParser, MainWindow: Move processing thread creation to TraceParser.
  * Rename the TraceParser class to TraceAnalyze.
  * TraceAnalyzer: Break out parser code and put it in separate class.
  * main(): Change the default window size.
  * ThreadBuffer: Use QWaitCondition instead of double QMutex.
  * LoadBuffer: Use QWaitCondition instead of abusing QMutex.
  * TraceParser: Fix bug regarding very short traces.
  * WorkItem: Correct comments.
  * TraceParser, TraceAnalyzer: Improve performance.
  * TraceParser: Change batch size from 100 to 10000.
  * TraceAnalyzer: Fix bug about not processing final batch.
  * Use prctl() to give names to thread.
  * MainWindow, TraceAnalyzer: consolidate debug output.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 17 Mar 2016 00:19:29 +0200

traceshark (0.0.2-alpha) RELEASED; urgency=medium

  * Implement the displaying of the license.
  * Improve copyright messages.
  * Improve the shark icon.
  * Set the application information,
  * Improve README.md.
  * Add the StringTree class.
  * Make StringPool use AVL instead of RB.
  * Change name of TraceShark namespace to TShark.
  * Change the StringPool cutoff limit from constant to a parameter.
  * Improve StringPool loops.
  * Improve StringTree loops.
  * MainWindow: Improve about message.
  * StrHash32(): Simplify hash function.
  * TaskInfo: Implement adding of task in info field to legend.
  * FtraceParser: improve task colorization.
  * MainWindow: remove legend items when double clicked.
  * ftraceparams.h: Move generic code to separate header.
  * Implement support for parsing perf traces.
  * MainWindow: Fix NULL pointer dereference when moving cursor.
  * MainWindow: close trace if MainWindow is being deleted.
  * Tune copyright message.
  * TaskInfo: prevent the same pid from being added multiple times.
  * TaskGraph: Remove the LegendGraph object from the legend before deletion.
  * TraceParser: Do not inline handleWrongTaskOnCPU().
  * LegendGraph: make compile warning go away.
  * TaskInfo: Add a button for clearing out all tasks from the legend.
  * Improve the width and use of width by the upper parts of the mainwindow.
  * TraceParser: Important bug fix regarding buffer indexes.
  * traceshark.pro: Add directory for generated files.
  * New feature: Add the display of stack traces.
  * Remove use use of the STL-compatibility functions of QList and QVector.
  * Rename EventDialog to EventInfoDialog.
  * Introduce TList and use it instead of QList for the events list.
  * TraceParser: Reduce the size of thread buffers.
  * TraceParser: Fix bug in colorizeTasks().
  * QCustomPlot: Update to 1.3.2.
  * TraceParser: improve close().
  * TraceParser: replace if () else if ... with switch statements.
  * Fix bug with regards to task name containing a space.
  * Fix bug with about incorrect parsing of task state in perf traces.
  * New Feature: Add button for finding wakeup events.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Thu, 03 Mar 2016 22:22:11 +0200

traceshark (0.0.1-alpha) RELEASED; urgency=medium

  * Initial release.

 -- Viktor Rosendahl <viktor.rosendahl@gmail.com>  Mon, 24 Aug 2015 00:24:09 +0300